:root {
    color-scheme: light;
    --bg: #f6f7fb;
    --panel: #ffffff;
    --text: #172033;
    --muted: #647084;
    --line: #dfe4ec;
    --primary: #1769e0;
    --primary-dark: #0f55bc;
    --danger: #c43131;
    --ok: #0d8a5f;
    --shadow: 0 12px 30px rgba(23, 32, 51, .08);
}

[data-theme="dark"] {
    color-scheme: dark;
    --bg: #10131a;
    --panel: #191e27;
    --text: #eef2f8;
    --muted: #a5afc0;
    --line: #2b3342;
    --primary: #5d9cff;
    --primary-dark: #337be8;
    --danger: #ff6565;
    --ok: #34d399;
    --shadow: 0 12px 30px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 14px clamp(16px, 4vw, 42px);
    background: color-mix(in srgb, var(--panel) 92%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}
.brand { font-weight: 800; font-size: 22px; }
.nav { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.nav a { color: var(--muted); font-size: 14px; }
.page { width: min(1180px, calc(100% - 28px)); margin: 26px auto 80px; }
.panel, .account-card, .worker-stats, .login-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.panel { padding: 22px; margin-bottom: 18px; }
h1, h2 { margin: 0 0 18px; }
h1 { font-size: clamp(24px, 3vw, 34px); }
h2 { font-size: 20px; }
.grid { display: grid; gap: 16px; }
.stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 18px; }
.metric {
    padding: 18px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}
.metric span { display: block; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.metric strong { font-size: 32px; }
.metric.small strong { font-size: 24px; }
label { display: grid; gap: 8px; font-weight: 700; color: var(--text); }
input, textarea, select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px 13px;
    background: var(--bg);
    color: var(--text);
    font: inherit;
}
textarea { resize: vertical; }
button, .button {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 11px 14px;
    background: var(--panel);
    color: var(--text);
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
}
.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.primary:hover { background: var(--primary-dark); }
.danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.ghost, .icon-btn { background: transparent; box-shadow: none; }
.full { width: 100%; }
.stack { display: grid; gap: 16px; }
.inline-form, .filters { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; margin-bottom: 18px; }
.inline-form input { max-width: 320px; }
.form-grid { grid-template-columns: repeat(3, 1fr); align-items: end; }
.wide { grid-column: span 2; }
.section-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 14px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 13px; }
.pill { border: 1px solid var(--line); border-radius: 999px; padding: 4px 8px; font-size: 12px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.bulk-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin: 14px 0;
}
.checkline {
    display: inline-flex;
    grid-template-columns: none;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--muted);
}
.checkline input, td input[type="checkbox"] {
    width: auto;
    min-width: 18px;
    min-height: 18px;
}
.alert {
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 14px;
    border: 1px solid var(--line);
    background: var(--panel);
}
.alert.success { border-color: color-mix(in srgb, var(--ok) 45%, var(--line)); color: var(--ok); }
.alert.error { border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); color: var(--danger); }
.token-alert code { display: inline-block; user-select: all; font-size: 15px; }
.login-shell { min-height: calc(100vh - 130px); display: grid; place-items: center; }
.login-card { width: min(440px, 100%); padding: 28px; display: grid; gap: 18px; }
.worker-layout { display: grid; grid-template-columns: 280px 1fr; gap: 18px; align-items: start; }
.worker-stats { padding: 18px; display: grid; gap: 16px; position: sticky; top: 86px; }
.worker-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
}
.worker-profile h2 { margin: 0; }
.worker-profile p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.avatar-icon, .side-icon, .quick-links span {
    display: inline-grid;
    place-items: center;
    border-radius: 8px;
    font-weight: 900;
    background: color-mix(in srgb, var(--primary) 12%, var(--panel));
    color: var(--primary);
}
.avatar-icon {
    width: 46px;
    height: 46px;
    font-size: 15px;
}
.side-metrics, .region-counts, .quick-links { display: grid; gap: 8px; }
.side-metric {
    display: grid;
    grid-template-columns: 42px 1fr;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--bg);
}
.side-icon {
    width: 42px;
    height: 42px;
    font-size: 13px;
}
.side-metric span { color: var(--muted); font-size: 12px; }
.side-metric strong { display: block; margin-top: 3px; font-size: 18px; }
.region-counts span, .quick-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--muted);
}
.region-counts b {
    color: var(--text);
    min-width: 28px;
}
.region-counts strong { margin-left: auto; color: var(--text); }
.quick-links a { justify-content: flex-start; font-weight: 800; color: var(--text); }
.quick-links span {
    width: 30px;
    height: 30px;
    font-size: 12px;
}
.account-card { padding: clamp(18px, 4vw, 34px); }
.account-card form { display: grid; gap: 18px; }
.mail-login-action {
    display: flex;
    justify-content: center;
}
.mail-login-button {
    min-width: min(100%, 320px);
    gap: 10px;
    font-size: 17px;
    padding: 14px 20px;
}
.mail-login-button span {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .18);
    color: #fff;
}
.copy-row { display: grid; grid-template-columns: 1fr 96px; gap: 10px; align-items: end; }
.region-picker {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    border: 0;
    padding: 0;
    margin: 0;
}
.region-picker legend { grid-column: 1 / -1; font-weight: 800; margin-bottom: 8px; }
.region-picker input { position: absolute; opacity: 0; pointer-events: none; }
.region-picker span {
    display: grid;
    place-items: center;
    min-height: 72px;
    border: 2px solid var(--line);
    border-radius: 8px;
    font-size: 18px;
    font-weight: 800;
    cursor: pointer;
}
.region-picker input:checked + span { border-color: var(--primary); box-shadow: inset 0 0 0 2px var(--primary); }
.sticky-actions {
    position: sticky;
    bottom: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 14px 0 0;
    background: linear-gradient(to top, var(--panel) 80%, transparent);
}
code { white-space: pre-wrap; word-break: break-word; }

@media (max-width: 820px) {
    .topbar { align-items: flex-start; }
    .nav { justify-content: flex-end; }
    .stats-grid, .worker-layout, .form-grid { grid-template-columns: 1fr; }
    .worker-stats { position: static; }
    .copy-row, .region-picker, .sticky-actions { grid-template-columns: 1fr; }
    .wide { grid-column: auto; }
    .panel { padding: 16px; }
}